This research is aimed to understand the audiovisual recording and commentary practices of video games. First of all, we do a contextualisation of these types of production through a historical analysis of the way theses videos were diffused (from televised shows, to VHS, magazines’ bonuses, and on the Internet). After, we detail the limits and affordances of the YouTube sharing platform. Then, we create links between the commentary of video game and the concepts of film lecturer, performance and double performance. Finally, we analyse four genres of videos available on YouTube : machinimas, speedruns, let’s plays and longplays.